[mythtv-users] Shield TV OpenSLES vs. AudioTrack?

[Peter Bennett]

On 12/19/19 11:07 AM, Jim Abernathy wrote:
> On the Android Mythtv wiki it suggests for the Shield TV that you 
> should use AudioTrack in the audio options instead of OpenSLES.
>
> However, when I switch from OpenSLES to AudioTrack I get audio that 
> breaks up and goes mute. OpenSLES seems to work fine.  I'm on 
> mythtv-frontend for android v31-pre 539 with a backend that is V30.
>
> Should I just keep using OpenSLES or is there something else wrong 
> with my settings?
>
> I've followed the Wiki as closely as I can for the Shield.
>
> My Shield TV is connected to my Samsung UHD 4K via HDMI and the TV 
> sends the audio via optical cable to my AV Receiver. It's a 5.1 
> speaker system and Samsung says they send out the audio from TV to AV 
> Receiver in DTS format.
>
> Jim A
>
>
OpenSLES is only for stereo. Digital pass through may work in some cases 
but that is not officially supported by OpenSLES.

To get pass through of AC3 or other formats you need AudioTrack. I 
suggest you try using AudioTrack and turning on the digital options in 
MythTV for AC3 and others. This should pass  the surround sound signal 
through to the TV and the receiver. Also make sure the surround options 
in Shield settings are enabled.